Dubious and ********* behaviour by Woolworths

So I went to Woolworths Tygervalley yesterday (24/04) to check if my Woolworths storecard is still active as I have't used it for a while. The lady (Paulina) who assisted me, asked me if I wanted to upgrade my storecard to a gold card which has more benefits., which I agreed upon. Only after she finalized the paperwork did I realize that it was in fact a Gold Credit Card. Not once during the whole process did she mention that it is in fact a credit card and not a store card which I think is really *********. I asked her to cancel the card immediatelly but was then told that I will have to call Card services myself today (4/25) to cancel the card. I am really totally disgusted with the way I was treated by Pailina in having me believe that I,m ugrading my store card when in fact it was something I don't need nor want.